Study Hypotheses in the Pearson Edexcel A Level Psychology specification, including the knowledge, application and evaluation needed for exam questions and mark-scheme responses.
Louis investigated the effect of sleep disturbance on appetite. He conducted his investigation using nine rats. Louis set an alarm bell to ring at fixed one hour intervals over a ten-day period to disturb the rats.
Louis provided 25 grams of food to each rat at 09:00hrs each day. He recorded the amount of food remaining at 19:00hrs when he removed the food from the cage.
A control group of four rats that were not deprived of sleep were used as a comparison for his results.
State a fully operationalised non-directional (two-tailed) hypothesis for this investigation.
AO2 (2 marks)
Credit up to two marks for an accurate hypothesis
- There will be a difference between the amount of food intake in
grams that rats consume when sleep deprived and not sleep
deprived (2).
- There will be a difference between the amount of food intake that
rats consume when sleep deprived (1).
Look for other reasonable marking points.
Generic answers score 0 marks.
(2)